A = $\begin{bmatrix} 0 & -1 \\ 1 & 0 \end{bmatrix}$ এবং B = [a b] হলে BA = ? (ক) $[-b \text{ } a]$ (খ) $\begin{bmatrix} -b \\ a \end{bmatrix}$ (গ) $[b \text{ } -a]$ (ঘ) $\begin{bmatrix} b \\ a \end{bmatrix}$

ID#7021 HSC Higher Math 1st MCQ (Barisal 2023)

A = $\begin{bmatrix} 0 & -1 \\ 1 & 0 \end{bmatrix}$ এবং B = [a b] হলে BA = ?

ক) (ক) $[-b \text{ } a]$

খ) (খ) $\begin{bmatrix} -b \\ a \end{bmatrix}$

গ) (গ) $[b \text{ } -a]$

ঘ) (ঘ) $\begin{bmatrix} b \\ a \end{bmatrix}$

গ

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